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(No Model.)

J. P. COLEMAN. INDICATOR 0R IGNAL.

NO.- 573,207. Patented Deo. .15, 1896A.

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WITN ESSES:

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UNITED STATES PATENTk Ormes..

JOHN PRESSLEY-OOLEMAN, OF SIVISSVALE, PENNSYLVANIA, ASSIGNO'R TO THE UNION SWITCH AND SIGNAL COMPANY, SAME PLACE. y

INDICATOR OR SIGNAL.

SPECIFICATION forming part of Letters Patent No. 573,207, dated December 15, 1896.

Application 4filed .Tune 29, 1896.

To @ZZ whom it may oon/coma.-

Be it known that I, JOHN PREssLnY COLE- MAN, a citizen of the United States, residing at Swissvale, in the county of Allegheny and State of Pennsylvania, have invented or discovered certain new and useful Improvements in Indicators or Signals, of which improvements the following is a specification.

The invention described herein relates to 1o certain improvementsin indicators or signals,

and has for its object a construction of inclosing case or shell, and an arrangement of operating mechanism within the case or shell, whereby the latter can be easily removed from and placed within the shell or case.

The invention is hereinafter more fully described and claimed.

In the accompanying drawings, forming a part of this specification, Figure l is a sectional front elevation of my improved indicator, and Fig. 2 is a sectional side elevation of the same.

The drum-like shell or case l is provided O11 its side with .a socket 2 for the reception 2 5 of the upper end of the post or support 3, the lower end of the latter being secured in a similar socket on the base-plate 4. In the front wall 5, which is preferably made integral with the sides, is formed an opening in 3o which is secured a glass disk 6. The front wall of the shell is provided on its inner side with sockets 7, having the ends of bars 8 secured therein. These bars are designed to support the operating-magnets 9 and the parts 3 5 attached thereto. These magnets are secured to a platelO, having sleeves ll, formed integral therewith and adapted to slide onto the bars 8. The pole-pieces 12 are attached to the cores of the magnets by screws 13, and

4o between the pole-pieces and the ends of the cores is secured a plate 14, which is made of suoli size and shape that the main portion thereof will be in line with the glass disk 6, thus forming an indicating-plate, while the shorter end of the plate will bear against the side of the shell, thereby preventing` such sagging of the free ends of the magnets toward the sides of the drum as will interfere with the free movement of the indicating- 5o disk. This indicating-disk l5 and the counterweight 1G are secured to the rotating ar- Serial No. 597,278. (No model mature 17, which is secured to the shaft 1S, mounted in suitable bearings in the supporting-plate IO and in the cross-bar I9, extending between the pole-pieces l2, and held in place by the screws 13. t

rlhe outer faces of the plate 14 and disk l5 are painted in contrasting colors, as, for eX- ainple, the outer face ofthe plate 14 is painted white and the outer face of the disk is painted 6o red.

The supporting-plate is provided with an arm or bracket 20, to which the binding-screws 2l are secured, butinsulated therefrom.. To these binding-screws` are attached the ends ot' the coils of the magnets and the circuitwires 22, the latter passing up through the hollow post or standard.

The removable cover 23, which is provided with a. circular groove for the reception of 7o the edges of the shell or case, is held in place by a nut 24,.,screwing onto the threaded stud 25 on the locking-bar 26. Oneend of this locking-bar is constructed to fit behind a shoulder 27 on the case or shell, and the bar 75 is made a little longer than the diameter of the case or shell. In placing the bar in position its upper end is inclined toward the front of the 'case or shell, and the lower end placed behind the shoulder 27, which will also pre- 8O vent a longitudinal movement of the bar. If the bar be drawn toward the rear of the case or shell, its upper end will bind tightly against the inner wall of the case.

It will be observed that the magnets are arranged at one side of the case or shell, while the locking-bar passes diametrically across the saine, and that when the bar is removed the magnet-s and the parts carried thereby can be drawn out of the case or shell without 9o liability of injuring any of the delicate parts.

I claim herein as my inventiond l. In an'indicator or signal, the combination of a case or shell, one or more supporting bars or rods having one end secured in the case or shell, one or more sleeves adapted to fit over said bars, and signal-operating mechanism supported by said sleeves, substantially as set forth.

2. In an indicator or signal, the combina- Ioo tion of a case or shell, one or more bars or rods having one end secured in the case or ing one end of the bar as against outward or longitudinal movement, and means for detaehably Seenring the cover to the bar, substantially as set forth.

In testimony whereof I have hereunto set my hand.

J OI-IN PRESSLEY COLEMAN.

Vitiiesses:

Z. KINNEAR, II. D. MILES. 

